杉木火力楠纯林及混交林细根周转的研究-应用生态学报.PDF

1995 1 6 1 CHINESE JOURNAL OF APPLIED ECOLOGY,Jan. 1995,6( 1) 710 * 廖利平　陈楚莹　张家武　高　洪 ( , 110015) . -1 , 8803035 1560 ; kg ha -1 235398 565kg ha ; 1. 291. 42 1. 40; 1137 -1 -1 4318 2179kg ha ; 497595 1149kg ha , 36. 821.6 65. 9% . . Turnover of fine roots in pure and mixed Cunning hamia la nceolata andM ichelia ma cclur ei forests. Liao Liping, Chen Chuying, hang Jiaw u and Gao Hong (I nstitute of App lied E- , , 110015) . - . . . . , 1995,6( 1) : 7- 10. cology A cad emia S inica S heny ang Chin J Ap p l E col Studies on biomass, productivity and annual turnover of fine roots in pure and mixed C. lanceolata and M . macclurei forests show that the biomass of living fine root s in three -1 stands of pure and mixed forests is respectively 880, 3035 and 1560 kg ha , and t hat of -1 235, 398 565 , . dead ones is and kg ha respectively The annual turnover of fine roots is -1 1.29, 1.42 and 1.40, t heir annual productivity is 1137, 4318 and 2179 kg ha , and an- -1 nual mort ality is 497, 595 and 1149 kg ha , corresponding to 36. 8, 21. 6 and 65. 9% of annual litter fall in each stand. It is concluded that mixed plantation has a higher produc- tivity and better ecological coordination t han pure stand. Key wordsF